xeronic

Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

adj. Relating to xeronic acid or its derivatives

from the GNU version of the Collaborative International Dictionary of English

adj. Pertaining to, or designating, an acid, C8H12O4, related to fumaric acid, and obtained from citraconic acid as an oily substance having a bittersweet taste; -- so called from its tendency to form its anhydride.

from The Century Dictionary and Cyclopedia

Noting a hypothetical acid, known only in the form of its salts or anhydrid.